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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Lesica, Peter. - Shelly, J. Stephen - Montana Natural Heritage Program.
    Publication info: Helena, MT, Montana Natural Heritage Program, [1988]
    Holding Institution: Montana State Library
    Subjects: Arabis fecunda  Botany  Endemic plants  Montana  Rare plants  Sapphire rockcress  Spotted knapweed  
  2. By: Lesica, Peter. - Shelly, J. Stephen - Montana Natural Heritage Program.
    Publication info: Helena, MT, Montana Natural Heritage Program, [1991]
    Holding Institution: Montana State Library
    Subjects: Arabis fecunda  Botany  Endemic plants  Montana  Rare plants  Sapphire rockcress  Spotted knapweed  
  3. By: Rice, Peter M. - Carlson, Clinton E. - Bedunah, Donald J. - Intermountain Research Station (Ogden, Utah)
    Publication info: Ogden, Utah, U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, [1992]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Control  Effect of herbicides on  Montana  Plants  Spotted knapweed